#include<bits/stdc++.h>
using namespace std;
#define N 100

class solution{
    private:
        //int N=100;
        int ChessBoard[N][N]={0};
        int title = 0;
    public:
        void Special(int k,int x0,int y0){

        }
        void Chessplay(int x0,int y0,int x,int y,int size){
            if(size==1){
                return;
            }
            int t = title++;
            int s = size/2;
            if(x<x0+s&&y<y0+s){
                Chessplay(x0,y0,x,y,s);
            }
            if(x<)
        }
};